The shop opened in Hayward in 2004 with a name rooted in faith — His Signs.
The double-S didn't sit right on the door, so it became Hi Signs — keeping the meaning, adding a second one: aim high.
The initials "HIS" stayed on every invoice.
The shop moved to San Jose — to the address it still occupies today.
Incorporated as D&T Design at first. But "design" wasn't the trade. The work was signs — fabricated, permitted, installed. So the name shortened to D&T Sign.
The "&" is gone. The address is the same. The work is the same. The standards are the same.
Today, DT stands for what's stayed constant for over two decades:
Every project starts and ends with one question: are you happy with it?
For the same budget, we'll make it more beautiful, larger, and brighter.
No hidden fees. Transparent pricing. We stand behind every sign we make.
Got a lower bid from another shop? Send it over. We'll match it.
Meeting deadlines is the promise we've kept for 22 years running.
We're working to be the most trusted sign company in Northern California — one customer at a time.
No outsourcing — every step handled by our own team.
3580 Charter Park Dr, San Jose, CA 95136
Award-Winning Work · 2026
SHOP! DESIGN AWARDS
GOLD
2026
Gensler designed Jagalchi’s Daly City flagship. DT Signs fabricated and installed its signage — holding the exact color and tolerances the design demanded. In 2026 the project earned a Shop! Design Awards Gold, the retail design industry’s top honor, with recognition in Signage & Graphics.
Great signage is decided in fractions — a shade of green, a hairline of alignment. We hit that standard on every panel.